Melon and fruit seedling cultivation greenhouse device

Abstract

The utility model discloses a melon and fruit seedling cultivation greenhouse device belongs to seedling culture device technical field, solves the problem that the transverse deviation is easy to cause the film wrinkle when releasing the film, and the counterweight clamp is not firm and the arch rod wind resistance is weak. The utility model discloses: the U type slide rail of the membrane box inside both ends is set to the horizontal orientation its back side wall, the long rod both ends fixed flange's gyro wheel, and the recess of U type slide rail is slid with gyro wheel and is cooperated to restrict axial excursion, the membrane box inner wall vertical fixed two parallel limit baffle, and its working surface and the film end face clearance cooperation prevent the film deflection, and the counterweight clamp contains two through the articulated clamp body of rotary rod, and the inner wall fixed corrugated silica gel pressure strip of clamp body enhances the film clamping force, and the clamp body end sets up magnetic attraction hasp and realizes quick locking. The device is used in melon and fruit seedling cultivation greenhouse and is used for the stable release and reliable fixing of plastic film.

Description

Technical Field

[0001] This utility model belongs to the technical field of seedling cultivation devices, and more specifically, this utility model relates to a greenhouse device for cultivating melon and fruit seedlings. Background Technology

[0002] Greenhouses for cultivating melon and fruit seedlings are widely used in agricultural production. Their structure typically includes a frame, plastic film, and auxiliary components. Chinese utility model patent CN215454251U discloses a greenhouse device for cultivating melon and fruit seedlings, which uses a first rotating component and a second rotating rod to assist in film replacement and employs a film box to store spare rolls of film. However, in practical applications, the following drawbacks have been found: 1. Existing film boxes require manual opening of the lid, inserting a long rod with both ends aligned with the mounting holes to install the film roll. Because the long rod lacks an axial positioning structure, the film roll is prone to lateral displacement during rolling, causing wrinkles when the film is released from the outlet. Wrinkled film easily gets stuck at the rotating component during laying, requiring repeated adjustments and reducing efficiency. 2. The arched structure has weak wind resistance.

[0003] Due to the shortcomings of existing seedling cultivation greenhouse equipment, improvements are urgently needed. Utility Model Content

[0004] One object of this invention is to solve at least the aforementioned defects and to provide at least the advantages described below.

[0005] This utility model provides a greenhouse device for cultivating melon and fruit seedlings. It uses a U-shaped slide rail and rollers to facilitate the horizontal sliding installation of long rods and limit axial movement; and two parallel limiting baffles, which cooperate with the gap of the roll film end face to further prevent deviation and facilitate the laying and replacement of greenhouse plastic film.

[0006] This utility model provides a greenhouse device for cultivating melon and fruit seedlings, which includes uprights, side rods, cross rods, arch rods, plastic film, counterweight clamps, and a film box; the film box has a film outlet at the left end, and hanging racks are fixed at both ends inside; a long rod is installed on the hanging rack, and a roll of film is sleeved on the outside of the long rod; its characteristic is:

[0007] The bracket is a U-shaped slide rail, with its slide rail direction horizontally facing the rear side wall of the membrane box;

[0008] The long rod has flanged rollers fixed at both ends, and the rollers slide in a groove with the U-shaped slide rail.

[0009] Two limiting baffles are vertically fixed to the inner wall of the film box. The two limiting baffles are parallel to each other and the working surfaces of the two limiting baffles are in clearance fit with the end face of the film roll.

[0010] The counterweight clamp comprises two clamp bodies hinged together by a rotating rod. A corrugated silicone strip is fixed to the inner wall of each clamp body, and a magnetic snap fastener is provided at the end of the clamp body.

[0011] Preferably, the upper and lower walls of the membrane box are provided with elongated through holes, so that the two limiting baffles can be vertically fixed to the inner wall of the membrane box with adjustable spacing by screws; the working surface of the limiting baffles is coated with a smooth coating.

[0012] Preferably, each limiting baffle is provided with two first screws at the upper end and two countersunk screws at the lower end. The upper wall of the diaphragm box is provided with two parallel elongated through holes for adjusting the position of the two first screws. The lower wall of the diaphragm box is provided with two parallel elongated through holes for adjusting the position of the two countersunk screws. The vertical height of the limiting baffle fixed inside the diaphragm box is less than the height inside the diaphragm box but greater than half of the height inside the diaphragm box.

[0013] Preferably, the magnetic clasp comprises an iron block and a permanent magnet block, wherein the iron block and the permanent magnet block are provided with coaxial through screw holes.

[0014] Preferably, the crossbar is provided with a linear slide rail, the linear slide rail is slidably connected to a support frame, the bottom of the support frame is fixed with a slider, the slider engages and slides with the linear slide rail; the top of the support frame is hinged with a support block.

[0015] Preferably, the support frame is a herringbone structure hinged by two connecting rods; the screws fixed to the two sliders at the bottom of the support frame are slidably connected to the slide rail that engages with the linear slide rail, and the screws extend out of the slide rail for external nuts to be screwed in; the top of the support block is an arc-shaped concave surface that abuts against the inner arc surface of the arch rod.

[0016] Preferably, the film opening is fixed with a traction belt, which includes a first belt body and a second belt body arranged in parallel and respectively attached to the two sides of the film opening.

[0017] This utility model has at least the following beneficial effects:

[0018] First, this utility model uses a U-shaped slide rail and rollers to facilitate the horizontal sliding installation of a long rod and limit axial movement; and two parallel limiting baffles, which cooperate with the end face of the film roll to further prevent deviation.

[0019] Secondly, this utility model achieves continuously adjustable baffle spacing through the elongated through holes on the upper and lower walls of the film box and the screw, adapting to roll films of different widths from 80 to 150 centimeters.

[0020] Third, this utility model achieves one-handed closure by automatically adsorbing the permanent magnet upon contact with the iron block; the coaxial through hole allows bolts to be inserted to form a rigid connection, reducing the risk of loosening under vibration.

[0021] Fourth, this utility model solves the problem of insufficient arch support in existing technologies by adding a linear slide rail and a slider to enable the support frame to move and position along the length of the crossbar. The arc-shaped concave surface of the support block contacts the curved surface of the arch bar, dispersing wind pressure. The extension section of the screw, together with the nut, presses the slide rail to form a stable triangular connection, improving wind resistance.

[0022] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of one implementation of the fruit and vegetable seedling cultivation greenhouse device of this utility model;

[0024] Figure 2 This is an enlarged schematic diagram of the counterweight clamp of the fruit and vegetable seedling cultivation greenhouse device of this utility model;

[0025] Figure 3 for Figure 1 A cross-sectional schematic diagram of AA in the middle;

[0026] Figure 4 for Figure 3 A schematic diagram of removing the roll of film from the machine;

[0027] Figure 5 This is a side enlarged schematic diagram of the limiting baffle of the melon and fruit seedling cultivation greenhouse device of this utility model;

[0028] The components include: 1. Upright pole; 2. Plastic film; 3. Side pole; 4. First rotating component; 5. Horizontal bar; 6. Main pole; 7. Second rotating rod; 8. Fixing rod; 9. Film box; 10. First rotating rod; 11. Film outlet; 12. Box cover; 13. Roll film; 14. Long rod; 15. Counterweight clamp; 16. Second screw; 17. Support frame; 18. Support block; 19. Third rotating rod; 20. Clamp body; 21. Bolt; 22. Iron block; 23. Permanent magnet block; 24. Through hole; 25. First screw; 26. Nut; 27. Roller; 28. Limiting baffle; 29. ​​Countersunk screw; 30. U-shaped slide rail; 31. Groove; 32. Corrugated silicone strip. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the embodiments, so that those skilled in the art can implement it based on the description.

[0030] It should be noted that, unless otherwise specified, the experimental methods described in the following embodiments are conventional methods, and the reagents and materials described are commercially available. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to fixed connection or setting, detachable connection or setting, or integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Figure 1-5 The diagram illustrates the implementation of a greenhouse device for cultivating melon and fruit seedlings, including a vertical pole 1 fixed to the ground, a side pole 3 horizontally connected to the top of the pole 1, a crossbar 5 extending from the right end of the side pole 3, a fixed rod 8 vertically fixed upwards in the middle of the crossbar 5, and a main pole 6 connected to the top of the fixed rod 8. A rotating structure consisting of a first rotating component 4 and a second rotating rod 7 is used to assist in changing the plastic film. The first rotating component 4 is rotatable on the outside of the side pole 3, and the second rotating rod 7 is rotatable on the outside of the main pole 6. The outer end of the second rotating rod 7 is connected to an arched rod, the surface of which is covered with plastic film 2. Counterweight clamps 15 are installed at the lower ends of both sides of the plastic film 2, and a film box 9 is located on its right side. The rear side wall of the film box 9 is a cover 12, which can be opened by lifting the rear side wall using the first rotating rod 10.

[0032] A membrane outlet 11 is provided at the left end of the membrane box 9. Inside, a bracket with a U-shaped slide rail 30 structure is fixed at both ends, with the guide direction of the slide rail horizontally facing the rear wall of the membrane box 9. Long rod 14 has flanged rollers 27 fixed at both ends, the flanges perpendicular to the axial direction of the long rod 14. The rollers 27 are inserted into the grooves 31 of the U-shaped slide rail 30 to form a sliding fit. A roll of membrane 13 is sleeved on the outside of the long rod 14. Two parallel limiting baffles 28 are vertically fixed to the inner wall of the membrane box 9, with a clearance fit between the working surfaces of the baffles and the end faces of the roll of membrane 13. The counterweight clamp 15 is composed of two clamping bodies 20 hinged together by a third rotating rod 19. A corrugated silicone strip 32 is fixed to the inner wall of each clamping body 20, and a magnetic snap is provided at the end of each clamping body 20.

[0033] Working process: When changing the film, open the film box 9 from the rear side wall, and push the rollers 27 at both ends of the long rod 14 horizontally into the film box 9 along the U-shaped slide rail 30. The film head of the roll film 13 is led out from the film outlet 11. When releasing the film, the limiting baffle 28 restricts the lateral displacement of the roll film 13 to ensure that the film is output straight. Place the edge of the plastic film 2 on top of the film head of the roll film 13, close the counterweight clamp 15, and the magnetic snap will automatically attract and lock, and the corrugated silicone pressure strip 32 will press the film tightly.

[0034] The structural relationship and differences between this invention and the existing technology (CN215454251U) are as follows: the frame structure remains the same, with the hierarchical connection relationship of upright 1, side rod 3, horizontal rod 5, fixed rod 8, main rod 6, and arch rod being consistent with the existing technology. The design of the membrane box 9 located to the right of the counterweight clamp 15 and the plastic film 2 covering the arch rod remains unchanged. The core improvements include: the hanger and the long rod 14: the existing technology uses a simple hanger hole to insert the long rod 14 without an anti-deviation structure; this invention changes it to a U-shaped slide rail 30 + flanged roller 27, with the long rod 14 horizontally sliding and installing, limiting axial movement. The film roll 13 is limited: the existing technology has no limit baffle 28, and the film roll 13 is prone to tilting; this invention adds two parallel limit baffles 28, which are fitted with the end face of the film roll 13 to prevent deviation.

[0035] According to another embodiment of the present invention, the structure of the membrane box 9 is further optimized:

[0036] The top and bottom inner walls of the membrane box 9 have elongated through holes. Each of the two limiting baffles 28 is fixed with a first screw 25, and the two limiting baffles 28 are vertically fixed to the inner wall of the membrane box 9 by the first screws 25. The first screw 25 passes through the elongated through holes and is locked to the outer wall of the membrane box 9 by a nut 26. The distance between the two baffles can be adjusted by moving the position of the limiting baffles 28 along the elongated through holes. The working surface of the limiting baffles 28 that contacts the end face of the roll film 13 is coated with a smooth polytetrafluoroethylene coating.

[0037] Each limiting baffle 28 has two first screws 25 at its upper end and two countersunk screws 29 at its lower end. The upper wall of the membrane box 9 has two parallel elongated through holes for adjusting the position of the two first screws 25, and the lower wall of the membrane box 9 has two parallel elongated through holes for adjusting the position of the two countersunk screws 29. The vertical height of the limiting baffle 28 fixed within the membrane box 9 is less than the height inside the membrane box 9 but greater than half the height inside the membrane box 9. This allows the distance between the two baffles to be adjusted by tightening or loosening the nuts on the first screws 25, facilitating adjustment and adaptation to rolls of film 13 of different widths.

[0038] Work process:

[0039] When installing film rolls 13 of different widths, first loosen the nut 26 of the first screw 25, move the two limiting baffles 28 along the elongated through hole to a position matching the width of the film roll 13 (maintaining a gap of about 1-2 mm between the working surface of the baffle and the end face of the film roll 13), and then tighten the nut to fix it. When the film roll 13 is released, the polytetrafluoroethylene coating significantly reduces the frictional resistance between the baffle and the end face of the film.

[0040] Compared with the existing technology (CN215454251U), the membrane box 9 only has a simple hanging bracket inside, without the structure of the limit baffle 28. The roll film 13 relies entirely on the brackets at both ends of the long rod 14 for support, without any lateral restraint. When the roll film 13 is released, it is prone to lateral displacement due to the lack of guide limit, resulting in skewed and wrinkled film. The improvement of this utility model includes: an adjustable limit baffle 28, which is the first of its kind in the field: This solution uses long strip-shaped through holes on the upper and lower walls of the membrane box 9 and screws to achieve continuous adjustment of the baffle spacing, adapting to roll films 13 of different widths from 80 to 150 cm.

[0041] According to another embodiment of this utility model, the magnetic hook and loop fastener is implemented as follows: a rectangular iron block 22 is fixedly installed at the end of each clamp 20, and a rectangular permanent magnet block 23 is embedded at the end of the corresponding clamp 20. When the clamp 20 is closed, the iron block 22 and the permanent magnet block 23 automatically attract and adhere to each other. A through hole is opened in the center of the iron block 22, and a through hole of the same size is opened in the center of the permanent magnet block 23. After the two are attracted, the through holes are completely aligned to form a through channel.

[0042] The iron block 22 is made of industrial pure iron or low carbon steel with a magnetic permeability ≥5000μ; the permanent magnet block 23 is made of neodymium iron boron magnet with a magnetic energy product ≥35MGOe.

[0043] For example: A rectangular iron block 22 (20×15×3mm, low carbon steel) is welded to the end of the left clamp 20, and a Φ6.5mm through hole is drilled in the center. A rectangular permanent magnet block 23 (20×15×5mm, NdFeB N35 grade) is embedded in the end of the right clamp 20, and a through hole of the same size is drilled in the center.

[0044] Operating procedure: Close the clamp 20 and rely on the permanent magnet to attract the iron block 22 to complete the initial locking; insert the standard bolt 21 from the outside of the iron block 22 into the aligned through hole 24, and screw it into the through hole of the permanent magnet block 23 until it is tightened to achieve mechanical reinforcement.

[0045] Compared with existing technologies, according to the CN215454251U instruction manual, its counterweight clamp 15 relies on manual engagement of the fixing ring, which has the following problems: the fixing ring has no anti-vibration structure and is prone to loosening under external impact. The essence of this solution is that the permanent magnet automatically attracts the iron block 22 upon contact, achieving one-handed one-second closure; the coaxial through hole allows bolts to be inserted to form a rigid connection, reducing the risk of loosening under vibration.

[0046] The structure of this solution is adaptable: the iron block 22 is welded to the end of the clamp 20, and the permanent magnet block 23 is embedded in the corresponding groove 31 of the clamp 20; the diameter of the through hole is uniformly set to about 6 mm to accommodate M6 standard bolts. Magnetic attraction ensures automatic alignment of the through holes, reducing manual calibration; the bolts are screwed in from the outside, providing ample operating space.

[0047] According to another embodiment of this utility model, the structure for enhancing the wind resistance of the arch is as follows: A linear slide rail is fixed on the crossbar 5, and two sliders are engaged on the slide rail. The support frame 17 is a herringbone structure formed by two connecting rods of equal length connected through a central hinge point. A slider is fixed to the bottom of each of the two connecting rods of the herringbone structure, and a second screw 16 is fixed to each slider. The bottom of the linear slide rail has a slide rail, and the second screw 16 is slidably connected to the slide rail, with the screw extending out of the slide rail for external nut screwing. A support block 18 is hinged to the top of the support frame 17, and the top surface of the support block 18 is an arc-shaped concave surface, the curvature of which matches the inner arc surface of the arch.

[0048] Wind-resistant reinforcement operation procedure: Move the slider along the linear slide rail to the position where the arch needs to be reinforced; rotate the support frame 17 to expand or contract the herringbone structure until the arc concave surface of the support block 18 fits against the inner arc surface of the arch; rotate the exposed nut on the slider screw to press it against the bottom of the linear slide rail to complete the locking.

[0049] Compared with the existing technology (CN215454251U), this solution adds a linear slide rail and a slider to enable the support frame 17 to move and position along the length of the crossbar 5, thus solving the problem of insufficient arch support in the existing technology. The arc-shaped concave surface of the support block 18 contacts the curved surface of the arch bar to disperse wind pressure, and the screw extension section cooperates with the nut to press the slide rail, forming a stable triangular connection.

[0050] For example: the linear guide rail uses standard industrial aluminum profiles (with inverted T-slots in the cross-section), and the slider has embedded ball bearings to ensure smooth sliding; the herringbone connecting rod uses galvanized steel pipes, and the hinge points are connected with stainless steel pins; the support block 18 is cast from aluminum alloy, and the arc-shaped concave surface is machined to match the radius of curvature of the arch. After the nut is tightened, the entire structure forms a triangular stable system. Wind resistance mechanism: wind load acts on the arch, and the pressure is transmitted to the arc-shaped concave surface of the support block 18, distributed to the crossbar 5 through the herringbone frame, and finally guided to the ground by the upright 1.

[0051] When the old film of the fruit and vegetable seedling cultivation greenhouse device of this utility model is damaged and needs to be replaced with a new roll film 13, the operation is as follows:

[0052] Turn on the switch of the film box 9 and lift the box cover 12; take out the old roll film 13 and the long rod 14, and put the new roll film 13 onto the new long rod 14.

[0053] Align the rollers 27 at both ends of the long rod 14 with the U-shaped slide rail 30 inside the diaphragm box 9; push the long rod 14 horizontally to the end of the slide rail (a clicking sound indicates that it is in place).

[0054] Observe the width of the roll film 13 (e.g., 120 cm); loosen the nut on the screw of the limit baffle 28, move the baffle to 1 mm away from the end face of the roll film 13, and tighten the bolt.

[0055] Pull out the traction belt from the membrane opening and hold the first and second belts in your hands respectively; overlap the edge of the old membrane with the root of the traction belt and clamp it with the counterweight clamp 15 (the magnetic snap-on fastener will automatically attach).

[0056] Pull the traction belt outward at a constant speed, and release the film roll 13 through the film outlet 11 (limiting baffle 28 prevents deviation); pull the new plastic film 2 along the arch pole to the other end of the greenhouse, and fix the counterweight clamp 15 to the bottom of the upright 1. Cut the old film, clamp the counterweight block at the end of the new film; turn off the film box 9 switch to complete the replacement.

[0057] During the use of this utility model's fruit and vegetable seedling cultivation greenhouse device, when encountering strong winds or being installed in a windy area, for example, after receiving a strong wind warning, the slider on the linear slide rail moves along the horizontal bar 5, causing the arc-shaped concave surface of the support block 18 to fit against the inner wall of the arch rod, achieving a better clamping and pressing effect. Tightening the nut on the second screw 16 of the slider locks the linear slide rail, forming a stable connection for the triangular support structure and improving wind resistance.

[0058] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. It can be applied to various fields suitable for this utility model. Other modifications can be easily made by those skilled in the art.

Claims

1. A greenhouse device for cultivating melon and fruit seedlings, comprising uprights, side poles, cross poles, arch poles, plastic film, counterweight clamps, and a film box; the film box has a film outlet at its left end, and hanging frames are fixed at both ends inside; a long pole is mounted on the hanging frame, and a roll of film is sleeved on the outside of the long pole; characterized in that: The bracket is a U-shaped slide rail, with its slide rail direction horizontally facing the rear side wall of the membrane box; The long rod has flanged rollers fixed at both ends, and the rollers slide in a groove with the U-shaped slide rail. Two limiting baffles are vertically fixed to the inner wall of the film box. The two limiting baffles are parallel to each other and the working surfaces of the two limiting baffles are in clearance fit with the end face of the film roll. The counterweight clamp comprises two clamp bodies hinged together by a rotating rod. A corrugated silicone strip is fixed to the inner wall of each clamp body, and a magnetic snap fastener is provided at the end of the clamp body.

2. The greenhouse device for cultivating melon and fruit seedlings according to claim 1, characterized in that: The upper and lower walls of the membrane box are provided with elongated through holes, so that the two limiting baffles can be vertically fixed to the inner wall of the membrane box with adjustable spacing by screws; the working surface of the limiting baffles is sprayed with a smooth coating.

3. The greenhouse device for cultivating melon and fruit seedlings according to claim 2, characterized in that: Each limiting baffle is provided with two first screws at the upper end and two countersunk screws at the lower end. The upper wall of the diaphragm box is provided with two parallel elongated through holes for adjusting the position of the two first screws. The lower wall of the diaphragm box is provided with two parallel elongated through holes for adjusting the position of the two countersunk screws. The vertical height of the limiting baffle fixed inside the diaphragm box is less than the height inside the diaphragm box but greater than half of the height inside the diaphragm box.

4. The greenhouse device for cultivating melon and fruit seedlings according to claim 1, characterized in that: The magnetic hook and loop fastener comprises an iron block and a permanent magnet block, and the iron block and the permanent magnet block are provided with coaxial through screw holes.

5. The apparatus according to claim 1, characterized in that: The crossbar is equipped with a linear slide rail, which is slidably connected to a support frame. A slider is fixed at the bottom of the support frame, and the slider engages with and slides with the linear slide rail. A support block is hinged to the top of the support frame.

6. The seedling cultivation greenhouse device for melons and fruits according to claim 5, characterized in that: The support frame is a herringbone structure hinged by two connecting rods; the screws fixed to the two sliders at the bottom of the support frame are slidably connected to the slide rails that engage with the linear slide rails, and the screws extend out of the slide rails for external nuts to be screwed in; the top of the support block is an arc-shaped concave surface that abuts against the inner arc surface of the arch rod.

7. The greenhouse device for cultivating melon and fruit seedlings according to claim 1, characterized in that: The membrane opening is fixed by a traction belt, which includes a first belt body and a second belt body arranged in parallel and respectively attached to the two sides of the membrane opening.

Images